Honestly, imo, HBO Max is already a great app with great content, they just need to fine tune their marketing and get their original programming going. In the 3 months since it launched I've used this much more than Disney +. With Disney + I watched it for the Mandalorian and relived some of the classic Marvel cartoons from the 90's. But after a month or so of that I didnt really turn that app back on, there was nothing else for me to watch on there really. I tune in and put on Simpsons a few times but thats it.
HBO Max, though, their catalogue is expansive and theres something there for everyone. Theres new movies, classic films, all-time classic films like Gone with the Wind and Casablanca for film lovers, there's DC content, Cartoon Network stuff, Adult Swim, Looney Tunes, anime. The app has a lot going for it and can be a serious streaming contender. IF the Snyder Cut delivers, it will raise the bar for original content.